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Vulnerabilities

Vulnerability · CVE-2025-6669

A vulnerability was found in gooaclok819 sublinkX up to 1.8.

Published Jun 25, 2025 · catalog updated Jul 1, 2025 · sublinkX

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-6669. EPSS is 0.42%. Act only if a listed version of sublinkX is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.42%
Remediation
Vendor / distro source
Affected products
vendor gooaclok819 sublinkX 1.5

A vulnerability was found in gooaclok819 sublinkX up to 1.8. It has been declared as problematic. This vulnerability affects unknown code of the file middlewares/jwt.go. The manipulation with the input sublink leads to use of hard-coded cryptographic key . The attack can be initiated remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 1.9 is able to address this issue. The patch is identified as 778d26aef723daa58df98c8060c43f5bf5d1b10b. It is recommended to upgrade the

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor gooaclok819 sublinkX 1.51.5

How to fix CVE-2025-6669

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-6669. EPSS is 0.42%. Act only if a listed version of sublinkX is installed.

Which versions are affected?

Compare what you have installed with gooaclok819 sublinkX 1.5 1.5. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.42%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 25, 2025 · EUVD

    Detected

    A vulnerability was found in gooaclok819 sublinkX up to 1.8. It has been declared as problematic. This vulnerability affects unknown code of the file middlewares/jwt.go. The manipulation with the input sublink leads to use of hard-coded cryptographic key . The attack can be initiated remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has bee

  2. Jul 1, 2025 · EUVD

    Updated

    A vulnerability was found in gooaclok819 sublinkX up to 1.8. It has been declared as problematic. This vulnerability affects unknown code of the file middlewares/jwt.go. The manipulation with the input sublink leads to use of hard-coded cryptographic key . The attack can be initiated remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has bee

Sources

  • CVE.orgVulnerability recordCVE-2025-6669

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-6669

    30-day exploitation probability 0.42%

    first.org
  • EUVDVulnerability recordEUVD-2025-19165

    A vulnerability was found in gooaclok819 sublinkX up to 1.8. It has been declared as problematic. This vulnerability affects unknown code of the file middlewares/jwt.go. The manipulation with the input sublink leads to use of hard-coded cryptographic key . The attack can be initi

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 20, 2026